list1 = [1,2,3,4,5,"hello world",3.14,True]
for item in list1:
    print(item)

print("🍎" * 20)

for i,j in enumerate(list1):
    print(i,j)

print("🌈" * 20)

for i in range(len(list1)):
    print("索引=====>",i,"列表元素：",list1[i])